<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
    <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
    <!-- Bootstrap -->
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
  	<style type="text/css">
  		.passwordInfo {
  			margin-top: 1.875em;
  		}
  		/*通常1em = 16px*/
  		.passwordInfo input {
  			padding-top: 0.8em;
  			padding-bottom: 0.8em;
  			font-size: 0.8125em;
  			width: 100%;
  			outline: none;
  			border: none;
  			
  		}
  		
  		.passwordInfo .line {
  			width: 100%;
  			height: 0.09375em;
  			background-color: coral;
  		}
  		
  		.passwordInfo p {
  			margin-top: 1em;
  			margin-bottom: 1.5em;
  			line-height: 1em;
  			padding-left: 0;
  			font-size: 0.8125em;
  		}
  		
  		.passwordInfo button {
  			background-color: orange;
  			height: 2.7em;
  			border: none;
  			border-radius: 0.3125em;
  			color: white;
  			width: 100%;
  		}
  		
  	</style>
  
  </head>
  <body>

	<!--登录页面-->
	<div class="container-fluid">
		
		<div class="passwordInfo">
	
			<!--表单-->
			<form> 
				
				<input type='password' name="oldPassword" class="" placeholder="请输入原密码" />
				<div class="line"></div>
		    		<input type='password' name="newPassword" class="" placeholder="请输入新密码"/>
		    		<div class="line"></div>
		    		<input type='password' name="checkPassword" class="" placeholder="请确认新密码"/>
		    		<div class="line"></div>

			</form>
			
			<p>说明：密码长度为6-32位之间</p>
			<!--确认按钮-->
			<button class=""> 确认</button>

		</div>
	</div>
    
    <!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
    <script src="https://cdn.bootcss.com/jquery/1.12.4/jquery.min.js"></script>
    <!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
    <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
  </body>
</html>